pusilla (Macquart), 1842:114 (54) (Eristalis). Type locality: French Guiana, Mana River. HT M (MNHNP).

Distr.: Colombia, Argentina, Costa Rica.

Refs.: Hull, 1925a:36 (description), pi. 1:2; Bean, 1949:144, fig. 2 (M genitalia) (abdomen). 2:17 (mesonotum); Thompson et al. 1976:108 (cat.); Thompson, 1981:152 (synomyms and notes).